This'll be old news for some lucky folks, but NVIDIA has just unveiled the GeForce GTX 670 graphics card. It aims to bring Kepler to gamers who don't have off-shore bank accounts, with a price tag of $399 (or £329 in the UK, and €329 in Europe). What sacrifices will be made to reach that bracket, compared to the flagship GTX 680? A loss of 192 CUDA cores, for starters, plus a slightly slower 915MHz base clock speed, which will no doubt have an impact on benchmarks -- we'll do a review round-up shortly to figure out just how much.